8154210: Zero: Better byte behaviour
Summary: Complete support for 8132051 on Zero and fix failure on 64-bit big-endian systems
Reviewed-by: andrew, chrisphi, coleenp
8154838: G1CardLiveData::free_large_bitmap() uses wrong calculation to determine the number of words
Summary: Use the exact same calculation as G1CardLiveData::allocate_large_bitmap() in free_large_bitmap().
Reviewed-by: stefank, jmasa